package com.too;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.function.Consumer;

/**
 * @ProjectName: ybxy6
 * @Titile: HashSetDemo
 * @Author: dumb-goose-111
 * @Description: TODO
 */



public class HashSetDemo {
    public static void main(String[] args) {
        ArrayList<String> list = new ArrayList<>();
        list.add("张三");
        list.add("张三");
        list.add("张三");
        list.add("张三");
        System.out.println(list);

        ArrayList<String> newlist = new ArrayList<>((new HashSet<String>(list)));
        System.out.println(newlist);
        //1. 创建HashSet对象
        HashSet<String> hashSet = new HashSet<>();
        //2. 保存数据
        hashSet.add("张淇");
        hashSet.add("尤柯");
        hashSet.add("赵鑫");
        hashSet.add("张植");
        System.out.println(hashSet);
        //3. 取数据（迭代器）
        Iterator<String> iterator = hashSet.iterator();
        while (iterator.hasNext()) {
            String next = iterator.next();
            System.out.println(next);
        }
//        for (int i = 0; i < hashSet.size(); i++) {
//
//        }//用不了
        //4. 取数据（增强for循环）
        for (String name : hashSet) {
            System.out.println("name=" + name);
        }

        int[] arr ={1,2,3,4,5,6,7,8,9,10};
        for (int i : arr){
            System.out.println(i);
        }
        //5. 取数据（Lambda）
        hashSet.forEach(new Consumer<String>() {
            @Override
            public void accept(String s) {
                System.out.println(s);
            }
        });

        hashSet.forEach(s -> System.out.println(s));

        hashSet.forEach(System.out::println);

    }

}
